Method for manufacturing an underlay material, and underlay material
OwnerThomas Virtaneninventor
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Abstract
A method for manufacturing an underlay material (8) to be set under parquet or a laminate, the underlay material including a sheet material layer (1) and a flexible cellular plastic material layer (3) bonded under the sheet material layer, and a bottom surface of the cellular plastic layer being processed for providing an air space, whereby the bottom surface of the cellular plastic material layer (3) is processed by melting the cellular plastic material locally for providing an air space (9) and for simultaneously bonding the cellular plastic material layer to the sheet material layer (1). An underlay material manufactured by such a method is also described.
Claims20
A method for manufacturing an underlay material to be set under parquet or a laminate, said underlay material consisting of a sheet material layer and a flexible cellular plastic material layer bonded under the sheet material layer, and a bottom surface of said cellular plastic material layer being processed for providing an air space, wherein the bottom surface of the cellular plastic material layer is processed by melting cellular plastic material of the cellular plastic material layer locally, thereby providing the air space and simultaneously bonding the cellular plastic material layer to the sheet material layer only at an area of recesses formed by melting the cellular plastic material.
Dependencies are inferred from the claim text.